Circles and spirals were obviously what was behind this map. And, it seems there was maybe something in the water, since Matt Jackson also posted a very circle-y map earlier this week, as well. This was still in process at the time, but I shared an in-process version, just for comparison.
The latest couple maps have been exploring the idea of interrupting a long, continuous hallway; in this case, the arcing diagonal hall is broken with a large circle, and various smaller halls and rooms spin off from the various paths.
This is a little bit out of sequence, but I think last week was supposed to be the next post, so things got messed up anyhow. So, enjoy this one, and there will be a new one next week to get back on schedule.